Atypical running track is an oval with 74-m-diameter half circles at each end. a runner going once around the track covers a distance of 400 m . suppose a runner, moving at a constant speed, goes once around the track in 1 min 40 s. what is her centripetal acceleration during the turn at each end of the track?

Her centripetal acceleration during the turn at each end of the track is

Step-by-step explanation:

Total distance covered in one round , D= 400 m

Time taken to cover one round , T = 1 min 40 s = 100 sec

Speed of runner ,

Now centripetal acceleration is given by

where

Thus her centripetal acceleration during the turn at each end of the track is